#include static void test_fundamentals (void) { g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_NONE)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_INTERFACE)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_CHAR)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_UCHAR)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_BOOLEAN)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_INT)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_UINT)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_LONG)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_ULONG)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_INT64)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_UINT64)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_ENUM)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_FLAGS)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_FLOAT)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_DOUBLE)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_STRING)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_POINTER)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_BOXED)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_PARAM)); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_OBJECT)); g_assert (G_TYPE_OBJECT == g_object_get_type ()); g_assert (G_TYPE_IS_FUNDAMENTAL (G_TYPE_VARIANT)); g_assert (G_TYPE_IS_DERIVED (G_TYPE_INITIALLY_UNOWNED)); g_assert (g_type_fundamental_next () == G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_USER_FIRST)); } static void test_type_qdata (void) { gchar *data; g_type_set_qdata (G_TYPE_ENUM, g_quark_from_string ("bla"), "bla"); data = g_type_get_qdata (G_TYPE_ENUM, g_quark_from_string ("bla")); g_assert_cmpstr (data, ==, "bla"); } static void test_type_query (void) { GTypeQuery query; g_type_query (G_TYPE_ENUM, &query); g_assert_cmpint (query.type, ==, G_TYPE_ENUM); g_assert_cmpstr (query.type_name, ==, "GEnum"); g_assert_cmpint (query.class_size, ==, sizeof (GEnumClass)); g_assert_cmpint (query.instance_size, ==, 0); } typedef struct _MyObject MyObject; typedef struct _MyObjectClass MyObjectClass; typedef struct _MyObjectClassPrivate MyObjectClassPrivate; struct _MyObject { GObject parent_instance; gint count; }; struct _MyObjectClass { GObjectClass parent_class; }; struct _MyObjectClassPrivate { gint secret_class_count; }; static GType my_object_get_type (void); G_DEFINE_TYPE_WITH_CODE (MyObject, my_object, G_TYPE_OBJECT, g_type_add_class_private (g_define_type_id, sizeof (MyObjectClassPrivate)) ); static void my_object_init (MyObject *obj) { obj->count = 42; } static void my_object_class_init (MyObjectClass *klass) { } static void test_class_private (void) { GObject *obj; MyObjectClass *class; MyObjectClassPrivate *priv; obj = g_object_new (my_object_get_type (), NULL); class = g_type_class_ref (my_object_get_type ()); priv = G_TYPE_CLASS_GET_PRIVATE (class, my_object_get_type (), MyObjectClassPrivate); priv->secret_class_count = 13; g_type_class_unref (class); g_object_unref (obj); g_assert_cmpint (g_type_qname (my_object_get_type ()), ==, g_quark_from_string ("MyObject")); } static void test_clear (void) { GObject *o = NULL; GObject *tmp; g_clear_object (&o); g_assert (o == NULL); tmp = g_object_new (G_TYPE_OBJECT, NULL); g_assert_cmpint (tmp->ref_count, ==, 1); o = g_object_ref (tmp); g_assert (o != NULL); g_assert_cmpint (tmp->ref_count, ==, 2); g_clear_object (&o); g_assert_cmpint (tmp->ref_count, ==, 1); g_assert (o == NULL); g_object_unref (tmp); } static void test_clear_function (void) { volatile GObject *o = NULL; GObject *tmp; (g_clear_object) (&o); g_assert (o == NULL); tmp = g_object_new (G_TYPE_OBJECT, NULL); g_assert_cmpint (tmp->ref_count, ==, 1); o = g_object_ref (tmp); g_assert (o != NULL); g_assert_cmpint (tmp->ref_count, ==, 2); (g_clear_object) (&o); g_assert_cmpint (tmp->ref_count, ==, 1); g_assert (o == NULL); g_object_unref (tmp); } static void test_set (void) { GObject *o = NULL; GObject *tmp; gpointer tmp_weak = NULL; g_assert (!g_set_object (&o, NULL)); g_assert (o == NULL); tmp = g_object_new (G_TYPE_OBJECT, NULL); tmp_weak = tmp; g_object_add_weak_pointer (tmp, &tmp_weak); g_assert_cmpint (tmp->ref_count, ==, 1); g_assert (g_set_object (&o, tmp)); g_assert (o == tmp); g_assert_cmpint (tmp->ref_count, ==, 2); g_object_unref (tmp); g_assert_cmpint (tmp->ref_count, ==, 1); /* Setting it again shouldn’t cause finalisation. */ g_assert (!g_set_object (&o, tmp)); g_assert (o == tmp); g_assert_cmpint (tmp->ref_count, ==, 1); g_assert_nonnull (tmp_weak); g_assert (g_set_object (&o, NULL)); g_assert (o == NULL); g_assert_null (tmp_weak); } static void test_set_function (void) { GObject *o = NULL; GObject *tmp; gpointer tmp_weak = NULL; g_assert (!(g_set_object) (&o, NULL)); g_assert (o == NULL); tmp = g_object_new (G_TYPE_OBJECT, NULL); tmp_weak = tmp; g_object_add_weak_pointer (tmp, &tmp_weak); g_assert_cmpint (tmp->ref_count, ==, 1); g_assert ((g_set_object) (&o, tmp)); g_assert (o == tmp); g_assert_cmpint (tmp->ref_count, ==, 2); g_object_unref (tmp); g_assert_cmpint (tmp->ref_count, ==, 1); /* Setting it again shouldn’t cause finalisation. */ g_assert (!(g_set_object) (&o, tmp)); g_assert (o == tmp); g_assert_cmpint (tmp->ref_count, ==, 1); g_assert_nonnull (tmp_weak); g_assert ((g_set_object) (&o, NULL)); g_assert (o == NULL); g_assert_null (tmp_weak); } static void toggle_cb (gpointer data, GObject *obj, gboolean is_last) { gboolean *b = data; *b = TRUE; } static void test_object_value (void) { GObject *v; GObject *v2; GValue value = G_VALUE_INIT; gboolean toggled = FALSE; g_value_init (&value, G_TYPE_OBJECT); v = g_object_new (G_TYPE_OBJECT, NULL); g_object_add_toggle_ref (v, toggle_cb, &toggled); g_value_take_object (&value, v); v2 = g_value_get_object (&value); g_assert (v2 == v); v2 = g_value_dup_object (&value); g_assert (v2 == v); /* objects use ref/unref for copy/free */ g_object_unref (v2); g_assert (!toggled); g_value_unset (&value); g_assert (toggled); /* test the deprecated variant too */ g_value_init (&value, G_TYPE_OBJECT); /* get a new reference */ g_object_ref (v); G_GNUC_BEGIN_IGNORE_DEPRECATIONS g_value_set_object_take_ownership (&value, v); G_GNUC_END_IGNORE_DEPRECATIONS toggled = FALSE; g_value_unset (&value); g_assert (toggled); g_object_remove_toggle_ref (v, toggle_cb, &toggled); } static void test_initially_unowned (void) { GObject *obj; obj = g_object_new (G_TYPE_INITIALLY_UNOWNED, NULL); g_assert (g_object_is_floating (obj)); g_assert_cmpint (obj->ref_count, ==, 1); g_object_ref_sink (obj); g_assert (!g_object_is_floating (obj)); g_assert_cmpint (obj->ref_count, ==, 1); g_object_ref_sink (obj); g_assert (!g_object_is_floating (obj)); g_assert_cmpint (obj->ref_count, ==, 2); g_object_unref (obj); g_assert_cmpint (obj->ref_count, ==, 1); g_object_force_floating (obj); g_assert (g_object_is_floating (obj)); g_assert_cmpint (obj->ref_count, ==, 1); g_object_ref_sink (obj); g_object_unref (obj); } static void test_weak_pointer (void) { GObject *obj; gpointer weak; gpointer weak2; weak = weak2 = obj = g_object_new (G_TYPE_OBJECT, NULL); g_assert_cmpint (obj->ref_count, ==, 1); g_object_add_weak_pointer (obj, &weak); g_object_add_weak_pointer (obj, &weak2); g_assert_cmpint (obj->ref_count, ==, 1); g_assert (weak == obj); g_assert (weak2 == obj); g_object_remove_weak_pointer (obj, &weak2); g_assert_cmpint (obj->ref_count, ==, 1); g_assert (weak == obj); g_assert (weak2 == obj); g_object_unref (obj); g_assert (weak == NULL); g_assert (weak2 == obj); } static void test_weak_pointer_clear (void) { GObject *obj; gpointer weak = NULL; g_clear_weak_pointer (&weak); g_assert_null (weak); weak = obj = g_object_new (G_TYPE_OBJECT, NULL); g_assert_cmpint (obj->ref_count, ==, 1); g_object_add_weak_pointer (obj, &weak); g_assert_cmpint (obj->ref_count, ==, 1); g_assert_true (weak == obj); g_clear_weak_pointer (&weak); g_assert_cmpint (obj->ref_count, ==, 1); g_assert_null (weak); g_object_unref (obj); } static void test_weak_pointer_clear_function (void) { GObject *obj; gpointer weak = NULL; (g_clear_weak_pointer) (&weak); g_assert_null (weak); weak = obj = g_object_new (G_TYPE_OBJECT, NULL); g_assert_cmpint (obj->ref_count, ==, 1); g_object_add_weak_pointer (obj, &weak); g_assert_cmpint (obj->ref_count, ==, 1); g_assert_true (weak == obj); (g_clear_weak_pointer) (&weak); g_assert_cmpint (obj->ref_count, ==, 1); g_assert_null (weak); g_object_unref (obj); } static void test_weak_pointer_set (void) { GObject *obj; gpointer weak = NULL; g_assert_false (g_set_weak_pointer (&weak, NULL)); g_assert_null (weak); obj = g_object_new (G_TYPE_OBJECT, NULL); g_assert_cmpint (obj->ref_count, ==, 1); g_assert_true (g_set_weak_pointer (&weak, obj)); g_assert_cmpint (obj->ref_count, ==, 1); g_assert_true (weak == obj); g_assert_true (g_set_weak_pointer (&weak, NULL)); g_assert_cmpint (obj->ref_count, ==, 1); g_assert_null (weak); g_assert_true (g_set_weak_pointer (&weak, obj)); g_assert_cmpint (obj->ref_count, ==, 1); g_assert_true (weak == obj); g_object_unref (obj); g_assert_null (weak); } static void test_weak_pointer_set_function (void) { GObject *obj; gpointer weak = NULL; g_assert_false ((g_set_weak_pointer) (&weak, NULL)); g_assert_null (weak); obj = g_object_new (G_TYPE_OBJECT, NULL); g_assert_cmpint (obj->ref_count, ==, 1); g_assert_true ((g_set_weak_pointer) (&weak, obj)); g_assert_cmpint (obj->ref_count, ==, 1); g_assert_true (weak == obj); g_assert_true ((g_set_weak_pointer) (&weak, NULL)); g_assert_cmpint (obj->ref_count, ==, 1); g_assert_null (weak); g_assert_true ((g_set_weak_pointer) (&weak, obj)); g_assert_cmpint (obj->ref_count, ==, 1); g_assert_true (weak == obj); g_object_unref (obj); g_assert_null (weak); } /* See gobject/tests/threadtests.c for the threaded version */ static void test_weak_ref (void) { GObject *obj; GObject *obj2; GObject *tmp; GWeakRef weak = { { GUINT_TO_POINTER (0xDEADBEEFU) } }; GWeakRef weak2 = { { GUINT_TO_POINTER (0xDEADBEEFU) } }; GWeakRef weak3 = { { GUINT_TO_POINTER (0xDEADBEEFU) } }; GWeakRef *dynamic_weak = g_new (GWeakRef, 1); /* you can initialize to empty like this... */ g_weak_ref_init (&weak2, NULL); g_assert (g_weak_ref_get (&weak2) == NULL); /* ... or via an initializer */ g_weak_ref_init (&weak3, NULL); g_assert (g_weak_ref_get (&weak3) == NULL); obj = g_object_new (G_TYPE_OBJECT, NULL); g_assert_cmpint (obj->ref_count, ==, 1); obj2 = g_object_new (G_TYPE_OBJECT, NULL); g_assert_cmpint (obj2->ref_count, ==, 1); /* you can init with an object (even if uninitialized) */ g_weak_ref_init (&weak, obj); g_weak_ref_init (dynamic_weak, obj); /* or set to point at an object, if initialized (maybe to 0) */ g_weak_ref_set (&weak2, obj); g_weak_ref_set (&weak3, obj); /* none of this affects its refcount */ g_assert_cmpint (obj->ref_count, ==, 1); /* getting the value takes a ref */ tmp = g_weak_ref_get (&weak); g_assert (tmp == obj); g_assert_cmpint (obj->ref_count, ==, 2); g_object_unref (tmp); g_assert_cmpint (obj->ref_count, ==, 1); tmp = g_weak_ref_get (&weak2); g_assert (tmp == obj); g_assert_cmpint (obj->ref_count, ==, 2); g_object_unref (tmp); g_assert_cmpint (obj->ref_count, ==, 1); tmp = g_weak_ref_get (&weak3); g_assert (tmp == obj); g_assert_cmpint (obj->ref_count, ==, 2); g_object_unref (tmp); g_assert_cmpint (obj->ref_count, ==, 1); tmp = g_weak_ref_get (dynamic_weak); g_assert (tmp == obj); g_assert_cmpint (obj->ref_count, ==, 2); g_object_unref (tmp); g_assert_cmpint (obj->ref_count, ==, 1); /* clearing a weak ref stops tracking */ g_weak_ref_clear (&weak); /* setting a weak ref to NULL stops tracking too */ g_weak_ref_set (&weak2, NULL); g_assert (g_weak_ref_get (&weak2) == NULL); g_weak_ref_clear (&weak2); /* setting a weak ref to a new object stops tracking the old one */ g_weak_ref_set (dynamic_weak, obj2); tmp = g_weak_ref_get (dynamic_weak); g_assert (tmp == obj2); g_assert_cmpint (obj2->ref_count, ==, 2); g_object_unref (tmp); g_assert_cmpint (obj2->ref_count, ==, 1); g_assert_cmpint (obj->ref_count, ==, 1); /* free the object: weak3 is the only one left pointing there */ g_object_unref (obj); g_assert (g_weak_ref_get (&weak3) == NULL); /* setting a weak ref to a new object stops tracking the old one */ g_weak_ref_set (dynamic_weak, obj2); tmp = g_weak_ref_get (dynamic_weak); g_assert (tmp == obj2); g_assert_cmpint (obj2->ref_count, ==, 2); g_object_unref (tmp); g_assert_cmpint (obj2->ref_count, ==, 1); g_weak_ref_clear (&weak3); /* clear and free dynamic_weak... */ g_weak_ref_clear (dynamic_weak); /* ... to prove that doing so stops this from being a use-after-free */ g_object_unref (obj2); g_free (dynamic_weak); } typedef struct { gboolean should_be_last; gint count; } Count; static void toggle_notify (gpointer data, GObject *obj, gboolean is_last) { Count *c = data; g_assert (is_last == c->should_be_last); c->count++; } static void test_toggle_ref (void) { GObject *obj; Count c, c2; obj = g_object_new (G_TYPE_OBJECT, NULL); g_object_add_toggle_ref (obj, toggle_notify, &c); g_object_add_toggle_ref (obj, toggle_notify, &c2); c.should_be_last = c2.should_be_last = TRUE; c.count = c2.count = 0; g_object_unref (obj); g_assert_cmpint (c.count, ==, 0); g_assert_cmpint (c2.count, ==, 0); g_object_ref (obj); g_assert_cmpint (c.count, ==, 0); g_assert_cmpint (c2.count, ==, 0); g_object_remove_toggle_ref (obj, toggle_notify, &c2); g_object_unref (obj); g_assert_cmpint (c.count, ==, 1); c.should_be_last = FALSE; g_object_ref (obj); g_assert_cmpint (c.count, ==, 2); c.should_be_last = TRUE; g_object_unref (obj); g_assert_cmpint (c.count, ==, 3); g_object_remove_toggle_ref (obj, toggle_notify, &c); } static gboolean destroyed; static gint value; static void data_destroy (gpointer data) { g_assert_cmpint (GPOINTER_TO_INT (data), ==, value); destroyed = TRUE; } static void test_object_qdata (void) { GObject *obj; gpointer v; GQuark quark; obj = g_object_new (G_TYPE_OBJECT, NULL); value = 1; destroyed = FALSE; g_object_set_data_full (obj, "test", GINT_TO_POINTER (1), data_destroy); v = g_object_get_data (obj, "test"); g_assert_cmpint (GPOINTER_TO_INT (v), ==, 1); g_object_set_data_full (obj, "test", GINT_TO_POINTER (2), data_destroy); g_assert (destroyed); value = 2; destroyed = FALSE; v = g_object_steal_data (obj, "test"); g_assert_cmpint (GPOINTER_TO_INT (v), ==, 2); g_assert (!destroyed); value = 1; destroyed = FALSE; quark = g_quark_from_string ("test"); g_object_set_qdata_full (obj, quark, GINT_TO_POINTER (1), data_destroy); v = g_object_get_qdata (obj, quark); g_assert_cmpint (GPOINTER_TO_INT (v), ==, 1); g_object_set_qdata_full (obj, quark, GINT_TO_POINTER (2), data_destroy); g_assert (destroyed); value = 2; destroyed = FALSE; v = g_object_steal_qdata (obj, quark); g_assert_cmpint (GPOINTER_TO_INT (v), ==, 2); g_assert (!destroyed); g_object_set_qdata_full (obj, quark, GINT_TO_POINTER (3), data_destroy); value = 3; destroyed = FALSE; g_object_unref (obj); g_assert (destroyed); } typedef struct { const gchar *value; gint refcount; } Value; static gpointer ref_value (gpointer value, gpointer user_data) { Value *v = value; Value **old_value_p = user_data; if (old_value_p) *old_value_p = v; if (v) v->refcount += 1; return value; } static void unref_value (gpointer value) { Value *v = value; v->refcount -= 1; if (v->refcount == 0) g_free (value); } static Value * new_value (const gchar *s) { Value *v; v = g_new (Value, 1); v->value = s; v->refcount = 1; return v; } static void test_object_qdata2 (void) { GObject *obj; Value *v, *v1, *v2, *v3, *old_val; GDestroyNotify old_destroy; gboolean res; obj = g_object_new (G_TYPE_OBJECT, NULL); v1 = new_value ("bla"); g_object_set_data_full (obj, "test", v1, unref_value); v = g_object_get_data (obj, "test"); g_assert_cmpstr (v->value, ==, "bla"); g_assert_cmpint (v->refcount, ==, 1); v = g_object_dup_data (obj, "test", ref_value, &old_val); g_assert (old_val == v1); g_assert_cmpstr (v->value, ==, "bla"); g_assert_cmpint (v->refcount, ==, 2); unref_value (v); v = g_object_dup_data (obj, "nono", ref_value, &old_val); g_assert (old_val == NULL); g_assert (v == NULL); v2 = new_value ("not"); res = g_object_replace_data (obj, "test", v1, v2, unref_value, &old_destroy); g_assert (res == TRUE); g_assert (old_destroy == unref_value); g_assert_cmpstr (v1->value, ==, "bla"); g_assert_cmpint (v1->refcount, ==, 1); v = g_object_get_data (obj, "test"); g_assert_cmpstr (v->value, ==, "not"); g_assert_cmpint (v->refcount, ==, 1); v3 = new_value ("xyz"); res = g_object_replace_data (obj, "test", v1, v3, unref_value, &old_destroy); g_assert (res == FALSE); g_assert_cmpstr (v2->value, ==, "not"); g_assert_cmpint (v2->refcount, ==, 1); unref_value (v1); res = g_object_replace_data (obj, "test", NULL, v3, unref_value, &old_destroy); g_assert (res == FALSE); g_assert_cmpstr (v2->value, ==, "not"); g_assert_cmpint (v2->refcount, ==, 1); res = g_object_replace_data (obj, "test", v2, NULL, unref_value, &old_destroy); g_assert (res == TRUE); g_assert (old_destroy == unref_value); g_assert_cmpstr (v2->value, ==, "not"); g_assert_cmpint (v2->refcount, ==, 1); unref_value (v2); v = g_object_get_data (obj, "test"); g_assert (v == NULL); res = g_object_replace_data (obj, "test", NULL, v3, unref_value, &old_destroy); g_assert (res == TRUE); v = g_object_get_data (obj, "test"); g_assert (v == v3); ref_value (v3, NULL); g_assert_cmpint (v3->refcount, ==, 2); g_object_unref (obj); g_assert_cmpint (v3->refcount, ==, 1); unref_value (v3); } int main (int argc, char **argv) { g_test_init (&argc, &argv, NULL); g_test_add_func ("/type/fundamentals", test_fundamentals); g_test_add_func ("/type/qdata", test_type_qdata); g_test_add_func ("/type/query", test_type_query); g_test_add_func ("/type/class-private", test_class_private); g_test_add_func ("/object/clear", test_clear); g_test_add_func ("/object/clear-function", test_clear_function); g_test_add_func ("/object/set", test_set); g_test_add_func ("/object/set-function", test_set_function); g_test_add_func ("/object/value", test_object_value); g_test_add_func ("/object/initially-unowned", test_initially_unowned); g_test_add_func ("/object/weak-pointer", test_weak_pointer); g_test_add_func ("/object/weak-pointer/clear", test_weak_pointer_clear); g_test_add_func ("/object/weak-pointer/clear-function", test_weak_pointer_clear_function); g_test_add_func ("/object/weak-pointer/set", test_weak_pointer_set); g_test_add_func ("/object/weak-pointer/set-function", test_weak_pointer_set_function); g_test_add_func ("/object/weak-ref", test_weak_ref); g_test_add_func ("/object/toggle-ref", test_toggle_ref); g_test_add_func ("/object/qdata", test_object_qdata); g_test_add_func ("/object/qdata2", test_object_qdata2); return g_test_run (); }